//
//  NSString+LY.h
//  SelectCity
//
//  Created by liuyan on 2019/3/13.
//  Copyright © 2019年 liuyan. All rights reserved.
//

#import <Foundation/Foundation.h>
#import <UIKit/UIKit.h>

@interface NSString (LY)

- (CGSize)sizeOfFont:(UIFont *)font maxSize:(CGSize)maxSize;

//校验6-20位数字和字母组合
-(BOOL)checkPassword;

@end


